| From: | Kevin Grittner <kgrittn(at)ymail(dot)com> |
|---|---|
| To: | ERR ORR <rd0002(at)gmail(dot)com> |
| Cc: | David Johnston <polobo(at)yahoo(dot)com>, "pgsql-bugs(at)postgresql(dot)org" <pgsql-bugs(at)postgresql(dot)org> |
| Subject: | Re: Re: 9.2.4: Strange behavior when wildcard is on left side of search string |
| Date: | 2013-04-07 15:22:46 |
| Message-ID: | 1365348166.26064.YahooMailNeo@web162904.mail.bf1.yahoo.com |
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| Lists: | pgsql-bugs |
ERR ORR <rd0002(at)gmail(dot)com> wrote:
> the fact that in 9.2.4 it is so bad that a simple query sometimes
> does not finish after 10+ minutes with incessant disk activity
> tends to look like a problem to me.
Try running a VACUUM FREEZE ANALYZE; command on the database, under
a database superuser ID. If you upgraded with pg_dump (or some
other logical population of the data, versus a pg_upgrade run) you
are probably getting bitten by the initial setting of hint bits.
http://wiki.postgresql.org/wiki/Hint_Bits
See if it is still slow after that....
--
Kevin Grittner
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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